Influence of Lignin Features on Thermal Stability and Mechanical Properties of Natural Rubber Compounds

Barana, Davide; Ali, Syed Danish; Salanti, Anika; Orlandi, Marco; Castellani, Luca; Hanel, Thomas; Zoia, Luca

doi:10.1021/acssuschemeng.6b00774

Cited by 100 publications

(95 citation statements)

References 40 publications

(87 reference statements)

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“…A strong band related to the C-O stretching of aliphatic alcohols and ether was found at 1024 cm -1 . It appeared in all spectra and it reflected the presence of polysaccharides (Barana et al 2016a). In the same region it is possible to find the Si-O stretching (around 1000 cm -1 ) related to the presence of silicate as inorganic fraction (Barana et al, 2016b).…”

Section: Characterization Of the Lignocellulosic Materialsmentioning

confidence: 91%

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Valorization of Side-Streams from a SSF Biorefinery Plant: Wheat Straw Lignin Purification Study

Zoia¹,

Salanti²,

Tolppa³

et al. 2017

BioResources

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The lignocellulosic materials produced after each step of a biorefinery plant using simultaneous saccharification and fermentation (SSF) technology on wheat straw (Triticum spp.) for bioethanol production were characterized by spectroscopic and chromatographic techniques in order to investigate the macromolecular interactions between the lignin and polysaccharides. In order to valorize the lignin cakes, a purification step was set up and the extraction conditions (acid pretreatment, temperature, time, and NaOH concentration) were optimized by a chemiometric approach in terms of yield and purity. Residual carbohydrate impurities, free and/or chemically bonded to lignin (lignin carbohydrates complexes), were individuate as the most critical factor for a satisfactory lignin extraction. Finally, the lignin samples collected according to the optimized extraction conditions were chemically characterized and low molecular weight, high phenols concentration, and low carboxylic acids content were recognized as interesting features for industrial applications.

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Section: Characterization Of the Lignocellulosic Materialsmentioning

confidence: 91%

“…It also absorbs UV radiation and exhibits flame-retardant properties (De Chirico et al 2003). Furthermore, lignin can be used in epoxy resins (Lora and Glasser 2002), green composites (Bertini et al 2012;Thakur et al 2014), and as filler in tires (Frigerio et al 2014;Barana et al 2016a).…”

Section: Introductionmentioning

confidence: 99%

Valorization of Side-Streams from a SSF Biorefinery Plant: Wheat Straw Lignin Purification Study

Zoia¹,

Salanti²,

Tolppa³

et al. 2017

BioResources

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“…Lignin is included in rubber products to enhance their properties and also lower their prices (Kumaran and De, 1978;Botros et al, 2006;Feldman, 2016). However, previous studies of lignin-filled rubbers revealed the incompatibility of polar lignin and nonpolar rubber (Setua et al, 2000;Kosikova et al, 2007;Barana et al, 2016). This has generated further study of the incorporation of lignin into the rubber matrix by using various mixing methods and modifications to achieve better performance.…”

Section: Lignin As a Natural Alternative Sourcementioning

confidence: 99%

“…A lot of approaches have been taken by researchers to improve the process of rubber compound preparation and enhance the flexibility of the final composites (Vieira et al, 2011). One approach to utilize lignin for rubber application is by using simple blending with a rubber matrix (Shukla et al, 1998;Setua et al, 2000;Botros et al, 2006;Barana et al, 2016). However, such rubber compounds suffered from low compatibility and poor disperse-ability.…”

Section: Lignin As a Natural Alternative Sourcementioning

confidence: 99%

Lignin as Alternative Reinforcing Filler in the Rubber Industry: A Review

et al. 2020

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Lignin has potential as a reinforcing filler and to become an alternative to carbon black in the rubber industry. This is because it is formed from cheaper materials with abundant annually renewable sources and has low weight, high biological efficiency, and wide ecological adaptability. The utilization of bio-filler in the rubber industry has garnered increasing attention from researchers due to increasing environmental concerns over the toxic effects of carbon black on health and the environment. This article is intended to summarize current efforts in the development of a green and sustainable rubber product. Instead of focusing on silica and alternative rubber matrix-like guayule and Russian dandelion, it looks at lignin, which also has potential as a reinforcing filler and can enable the development of competitive green rubber composites. Lignin has several special characteristics such as good mechanical, physico-chemical, biodegradability, and antioxidant properties and excellent thermal stability. However, the incorporation of lignin in a rubber matrix is not straightforward, and this needs to be overcome with certain suitable solutions because of the polarity of lignin molecules, which contributes to strong self-interactions. Consequently, chemical modification of lignin is often used to improve the dispersion of lignin in elastomers, or a compatibilizer is added to enhance interfacial adhesion between lignin and the rubber matrix. This review attempts to compile relevant knowledge about the performance of lignin-filled rubber composite using different approaches such as mixing method, surface modification, hybrid fillers, etc. This study is expected to gain significant interest from researchers globally on the subject of lignin-based rubber composites and the advancement of development in green rubber products.

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“…Barana et al extracted lignin from different sources and by different processes was incorporated in NR. They observed that difference in the chemical and morphological characteristics of lignin influence its antioxidant and reinforcement capability [28]. Davidson et al recovered SBR from its aqueous polymerization emulsion by coagulation with acid and a lignin compound.…”

Section: Introductionmentioning

confidence: 99%

Suitability of different biomaterials for the application in tire

Bhadra¹,

Mohan²,

Nair³

2019

SN Appl. Sci.

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Biomaterials are obtained from renewable sources, low cost, abundant supply, environmentally friendly, fossil free and biodegradable. Therefore, the main objective of the present research is to use different biomaterials, such as carbohydrates (starches, celluloses), proteins and lignin in tire compounds without compromising tire properties and gaining possible advantages in terms of properties, cost, weight and environment. We have incorporated (10 phr, top up) different type of starches, such as maize, wheat, rice, cassava, and cellulosic materials, such as microcrystalline cellulose, sodium carboxymethyl cellulose, natural proteins, such as soya bean flour, and lignin in a silica filled tire tread compound and measured the properties to investigate if any of those materials can be used in tire. Among all these biomaterials, cassava, lignin and soya accelerate rate of vulcanization. Therefore, these materials can be used as bio-accelerator. Soya proteins imparts approximately 11% improvement in tensile strength and approximately 10% improvement in elongation at break. After the addition of biomaterials there is increase in marginal rolling resistance, increase in Payne effect and significant deterioration in wear property. Soya protein accelerate rate of vulcanization, improves mechanical properties, shows minimum deterioration in properties after ageing. Therefore, soya protein is the most suitable biomaterials among the materials studied for application in tire compound.

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Influence of Lignin Features on Thermal Stability and Mechanical Properties of Natural Rubber Compounds

Cited by 100 publications

References 40 publications

Valorization of Side-Streams from a SSF Biorefinery Plant: Wheat Straw Lignin Purification Study

Valorization of Side-Streams from a SSF Biorefinery Plant: Wheat Straw Lignin Purification Study

Lignin as Alternative Reinforcing Filler in the Rubber Industry: A Review

Suitability of different biomaterials for the application in tire

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